First question: Are you trolling? I am going to answer assuming you are not.
If you are definitely going through with the DAT and dentistry, then I would say to just answer each one of the hole punch ones without looking and move on. The PAT section is not likely to make or break your application unless it is really bad.
I had to completely blind guess on the last section and a half, and I got a 19. You would just have to make sure that you can absolutely dominate the other sections with the extra time.
If a bunch of small holes makes you queasy, I would reconsider dentistry. There is certainly no turning away as a dentist from a tooth/mouth full of holes. Somehow "holy" teeth must not bother you?
Also, since the condition is not recognized by any national psychology board, I would not expect any leniency from any dental schools.